Gunfire struck a Milwaukee Fire Department fire station on the west side Friday afternoon, forcing the station to close, fire department officials said. Multiple shots were fired into Engine Co. 13 at 2901 N. 30th St. about 1 p.m., a news release from the department said. No department members were injured. Firefighters assigned to the station will respond from Fire Station 5, 1313 W. Reservoir Ave., beginning at 8 a.m., Saturday, as Engine Co. 13 will be closed until further notice, the release said. Milwaukee police are investigating the incident, the release said. "It's one of those things that you just can't believe is happening," Assistant Milwaukee Fire Chief Gerard Washington said. "This is not what we're used to. We're the ones who show up to treat people wounded by gunfire. We're the ones who are here to help the public." Four firefighters were in the station when bullets entered the firehouse through several windows, while other bullets struck the outside of the building, Washington said.